fix https://github.com/sagemathinc/smc/issues/1112 -- "don't autosave all files if not connected"
fix https://github.com/sagemathinc/smc/issues/1112 -- "don't autosave all files if not connected"

tscholl2/smc,DrXyzzy/smc,DrXyzzy/smc,sagemathinc/smc,tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,tscholl2/smc,tscholl2/smc,sagemathinc/smc